The property was originally listed last year for almost $30 million

The United Arab Emirates has purchased a Manhattan townhouse for $27.25 million, more than a year after it initially went on the market, according to sources close to the deal.

The Permanent Mission of the United Arab Emirates to the United Nations confirmed that it purchased the Upper East Side house, but declined to say what it plans to use it for. The seller was financier Eric J. Gleacher, 74, the former chairman and namesake of...